25_kHz_CLOCK

Published:2009/7/11 1:32:00 Author:May | From:SeekIC

Requires only 3-mW power to generate fast 15-V two-phase rectangular pulses with 100-ns widths and 20-ns rise and fall times. Suitable for many MOSFET shift regiters. Uses two D13T1 programmable UJT oscillators, each having four-transistor driver stage using 2N2369 transistors. Oscillators are crosssynchronized by 130-pF capacitor. Timing and bias networks of UJTs set pulse repetition frequency.-G. A. Altemose, Low-Power Two-Phase Clock, EDN|EEE Magazine, May 15, 1971, p 49.



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